Question

我有以下html：

<use xlink:href

现在/logo可以是/logo-filled或//*[name()='use'][contains(@*='logo')]

如何在Puppeteer中编写xpath表达式以获取这些信息？

我已经尝试过了：

Unable to perform XPath operation. The prefix "xlink" for attribute "xlink:href" associated with an element type "use" is not bound.

但是当我测试它时，我得到了错误：

$_POST = [
  'product_id' => 1,
  'quantity' => 9
]

Answer 1

更改

//*[name()='use'][contains(@*='logo')]
                             ^

到

//*[name()='use'][contains(@*,'logo')]
                             ^

或

//use[starts-with(@*,'/logo')]